Space heater



FIG. 1 is a perspective view of a space heater showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view taken along line 4--4 of FIG. 2, the opposite side being the same as the side shown;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a bottom plan view thereof on a reduced scale. 

The ornamental design for a space heater, as shown and described. 